Trolley wheel



Sept. 15, 1925.

v G. s. MOORE TROLLEY WHEEL Filed May 51 1923 gwwntoz G1 les' 5. MoorePatented Sept. 15, 1925.

"1,553,910 UNITED STATES PATENT, OFFICE.

GILES S. MOORE, OF INDIANAPOLIS, INDIANA, ASSIGNOR T0 TROLLEY SHOE-WHEELCOMPANY, OF I'NDIAJHAZPOLIS,v INDIANA, A CORPORATION OF INDIANA.

TROLLEY WHEEL.

Application filed m 31, 1923. Seria1-No. 642,573.

To all whom it may concem:

Be it known that I, GILES S. Moons, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented certain new and useful Improvements in Trolley Wheels, ofwhich the following is a specification.

My said invention relates to a trolley having a sliding contact shoe fornormal engagement with the wire. It is an object of the invention toprovide means whereby the shoe will be replaced during backward movementof the trolley by awheel which can rotate backward freely and do awaywith any danger of displacingthe trolley from the wire. a

A further object of the invention is to provide a reversible trolleywith a pairof friction shoes which may be alternately turned intooperative position to increase the wear or to temporarily replace a wornshoe until the same can be repaired.

-,Referring to the accompanying drawings, which are made a art hereofand on which similar reference 0 aracters indicate similar parts,

Figure l is a side elevation of my device with parts broken away showingthe trolley in the position assumed" during forward movementof thecarinthe direction of the arrow, and

Figure 2 is a similar elevation of the device in the positionassumed .byit during rearward movement of the car in the direction of the arrow.

Inthe drawings reference character indicates a trolley wire of ordinaryconstruction and 11 indicates a harp having forks 12 with a cross bar 13between them, said forks being connected at theirv upper ends by a bolt14 forming a pivot for a pair of brackets, only one of which appears inthe drawings. The bracket has a pair of arms 15 at o posite sides and acentral arm 16, a bolt 1'? connecting the arms 16 of the two bracketsand providing a journal for a trolley wheel 18 having the usual flangesfor engaging the wire. Preferably said trolley wheel has a treadconsisting of a series of removable shoes as in Patent No. 1,382,664, ofJune 28, 1921. Each of the pairs of arms 15 supports at their outer enda shoe 19 adapted for sliding contactrwith the trolley wire, this shoereferably consisting of a substantially hol ow member of sheet ironhaving upstanding flanges between which is a removable wear plate 20indicated in dotted lines in Figure 1. A connector 21 which may be ofspring material is bentnear opposite ends at 22 to provide shouldersagainst which the adjacent ends of the shoes may rest, this being forconvenience in positioning the shoes which are secured to the outer endsof the connector by lugs 23 passing through ears 24 on the shoes, thelugs being preferably headed over to secure the shoes 1n place. Theconnector midway between its ends is provided with a bolt 25 adapted tobe positioned in one or theother of two holes indicated at.26 so as tostrike against the cross bar 13 which acts as a stop to limit themovement of the shoeaway from working position. In the operation of mydevice it will be seen that the shoe which is inoperative position willremain in sliding contact with the trolley wire as indicated in Figure 1so long as the car moves in a forward direction carrying the trolleywith it. Should the movement of the car be reversed the friction betweenthe wire andythe shoe combined with the action of gravity will move theparts toward the position indi-' cated in Figure 2 where therevolvingwheel engages the wire. This action is facilitated by the relation ofthe shoes to the wheel, the adjacent noses of the shoes extendingbetween the flanges of the wheel almost to the track for the wire. Oneof the abutments 27 will strike against the bar 13 (for which may besubstituted a lug on the fork or any other equivalent structure) therebylimiting the pivotal movement of the brackets and the parts carriedthereby. Should the shoe which is in working position become overheatedor otherwise damaged or unduly worn the harp 11 can be rotated about theaxis of the trolley pole so as to bring the other shoe 19 into operativeposition after which the operation of the device will be as before. Ithas already been explained how the bolt 25 acts as a stop to hold eithershoe in working position against the wire.

art that various modifications may be made in the device withoutdeparting from the v It willibe obvious to those skilled in the Havingthus fully described my said in vention, what I claim as new and desireto secure by Letters Patent, is:

1. A reversible trolley comprising a harp, a pair of sliding contactshoes,-and means on the harp for sustaining the shoes in angularrelation to each other whereby rotation of the harp on its longitudinalaxis will serve to bring the shoes alternately into position forengagementwith the trolley wire, substantially as set forth.

2. In a trolley, a harp, a pair ofsliding contact shoes carried therebyand adapted to be either alternately engaged with the trolley wire orboth disengaged therefrom, a wheel for engaging the wire, said wheel andshoes having opposing flanges for guiding the wire, and said shoes havepointed ends located'between the flanges of the wheel, substantially asset forth.

3. In a trolley, a harp, a bracket pivotally supported thereby, a wheelon the bracket, shoes supported by the bracket at opposite sides of thewheel, and means permitting the wheel and one of theshoes to be broughtalternately into engagement with the wire according to the direction ofmovement of the car, substantially as set forth. I

4. In a trolley, a reversible ha-rp, a bracket pivotally supportedthereby, awheel on the bracket, shoes supported by the bracket atopposite sides of the wheel, and means permitting the wheel and one ofthe shoes to bebrought alternately into engagement with the wire in oneposition of the harp and the other shoe and the wheel in therevers'eposition of the harp, substantially asset forth.

5 In atrolley, a harp, abracket pivotally supported thereby, a wheel onthe bracket,

shoes supported by the bracket at'o-pposite' sides of the wheel, meanspermitting the wheel and one of the shoes to be brought alternately intoengagement with the wire according to the direction of movement of thecar, and means for limiting the pivotal movement of the bracket inopposite directions, substantially as set forth.

6; In a trolley, a harp, a wheel supported thereby, a pairo'f shoes alsosupported by the harp, means permitting the wheel and one of the shoesto be brought alternately and automatically into engagement with thewire according to the direction of the movement of the car, and meanspermitting the other shoe and the wheel t'obe brought alternatelyandautomatically intoengagem'ent with the wire on reversal of thedirection of move ment of the car by rotation of the trolley pole on itsaxis, substantially as set forth.

7. In a trolley, harp, a wheel supported thereby, a pair of shoes alsosupported by the harp, means permitting the wheel and one of the shoesto-be brought alternately intoengageme-ntwith the wire according to thedirection of the movement of the car,

means permitting the other shoe and the wheel to be brought alternatelyinto engagement with the wire on reversal of direction of movement ofthe car after rotation of the trolley pole on its axis, a connectorbetween said shoes, an abutment carried by the harp, and stops on theconnector or limiting the movement of the shoes and the wheel,substantially as set forth.

8. In a trolley, a harp, a bracket pivotally supported on the harp,shoes at opposite sides of the bracket, a wheel intermediate said shoes,a connector between said shoes, stops on the connector for locating theshoes, and means for securing the shoes to the connector, substantiallyas set forth.

9. In a trolley, a harp, a bracket pivotally supported on the harp,shoes atopposite sides of the bracket, a wheel intermediate said shoes,a connector between said shoes, an abutment carried by the harp, andstops on the connector for co-acting with said abutment to limit thepivotal movement of the bracket, substantially as set forth.

10. In a trolley, a harp, a bracket pivotally supported on the harp,shoes at opposite sides of the bracket, a wheel intermediate said shoes,.a connector between said shoes, said trolley being reversible bymovement of the harp about the axis'of the trolley pole, an abutment onthe'harp, and stops on' the connector adapted to engage said abutment tolimit the pivotal movement of the bracket in either of said reversiblepositions, substantially as set forth.

11. In a trolley, a harp, a trolley wheel on the harp, a sliding Contactshoe-carried by the harp, flanges on the shoe and the,

wheel forming grooves for thetr'olley wire, and a nose on the shoeextending between the flanges on the wheel, substantially as set forth.

12. A trolley construction for making contact with a trolley wire,comprising asupportlng pole, a frame member pivotally mounted on saidpole, a pair of oppositely positioned sliding contact shoes supported bysaid frame member, and a Wheel pivotal ly mounted on said frame memberin position to be brought into contact with said trolley wire whenmoving in one direction and thrown out of contact when moving in theopposite direction.

13. .A trolley construction for making contact with a trolley wire,comprising a supporting pole, a frame member pivotally" mounted on' saidpole, a pairof sliding con tact shoes positioned on opposite sides ofsaid frame and having their ends joined by a rigid connection, and aflanged trolleywheel rotatably mounted on said frame having a portiontl'iereof' extending'between the'contact surfaces of saicbshoe's,whereby said wheel may be thrown into engagement with said trolley wireWhile moved inone:

I direction and be thrown out of engagement therewith when moved in theopposite dimotion.

14:. In a trolley for an electrically driven vehicle, a pair'of spacedsliding contacts, a rolling cont-act, and a reversible support for saidcontacts whereby the rolling contact engages the trolley wire'only whenthe vehlcle moves in one direction and the sliding.

contacts engage alternatively with the trolley Wire when the trolley ismoving in the other direction, substantially as set forth.

15. In a trolley for vehicles, a trolley Wheel, a pair of sliding shoesand a reversible support for said parts whereby the shoes only may enage alternatively with the trolley wire as t e vehicle moves in onedirection, and the wheel only as the vehicle moves in the otherdirection, substantially as set forth.

16. In a trolley for vehicles, a harp, a reversible pivoted support onthe harp, a rolling contact carried thereby, sliding contacts on thesupport at opposite sides of the rolling contact, and means for limitingthe swinging movement of the support on the harp in either of itsinterchangeable positions, substantially as set forth.

17. In a trolley, a harp and a pair of sliding contact shoes carriedthereby adapted for alternate engagement with the trolley wire,substantially as set forth.

so I

18. In a trolley, a harp, a pair of sliding I contact shoes carriedthereby adapted to be either alternately engaged with the trolley wireor both disengaged therefrom, and additional means for engaging the wirewhen both shoes are disengaged there-from, substantially as set forth. a

19. In a trolley, a harp, a pair of sliding contact shoes carriedthereby and adapted to be either alternately engaged with the trolleywire or both disengaged therefrom,

and a Wheel for engaging the wire when both shoes are disengagedtherefrom, substantially as set forth.

In witness whereof, I have hereunto set I my hand and seal atIndianapolis, Indiana this 29th day of May, A. D. nineteen hundred andtwenty-three.

GILES S.MOORE. -1

